The Jet Stream is a geostrophic wind blowing horizontally through the upper layers of the troposphere, generally from west to east, at an altitude of 20,000 - 50,000 feet.
What is the jet stream? - Met Office
What we talk about when we talk about the jet stream and El Niño
What Is the Jet Stream? NOAA SciJinks – All About Weather
What Is a Jet Stream And How Are The Different Types Of Jet Streams Formed?
How Humans are Breaking the Jet Stream and Changing the Weather
Jet Stream - an overview
What is a Jet Stream?
What is the jet stream and how does it work?
Jet Streams and Mid-latitude Systems
Jet stream - Wikipedia
What are jet streams and how do they influence the weather we experience?
JetStream National Oceanic and Atmospheric Administration
Storm-Steering Jet Stream Could Shift Poleward in 40 Years
Jet stream and stormy weather
What influences the position of the jet stream? - Quora